r0 = socket$inet_tcp(0x2, 0x1, 0x0)
ioctl$sock_SIOCDELRT(r0, 0x890c, &(0x7f00000003c0)={0x0, @l2tp={0x2, 0x0, @loopback}, @generic={0x0, "5f3ff1ca035ecf117a93be4fdc78"}, @vsock={0x28, 0x0, 0xffffffff, @my=0x0}})